Add dataset growth plot by version

README.md

@@ -45,6 +45,8 @@ family (Enevoldsen et al., [arXiv:2508.02271](https://arxiv.org/abs/2508.02271))
 | `v0.3.0-preview` | validation release, candidate-only | candidate-only | TBD | Live source gates validated; Biblioteka Nauki, Europeana, and HPLT/Common Corpus expansion remain subject to per-source QA, dedup, and legal review. |
 | `v0.3.1-preview` | reproducible Europeana shard | 810 | 140,042 | 1,000 direct API records sampled; 810 passed short/language/OCR gates, with per-record rights and author metadata. |
 
+![Stable dataset size by version](artifacts/dataset_size_by_version.png)
+
 ### Version details
 
 #### v0.2.3 — current stable

src/make_docs.py

@@ -185,6 +185,8 @@ family (Enevoldsen et al., [arXiv:2508.02271](https://arxiv.org/abs/2508.02271))
 | `v0.2.0` | previous stable | 2,490,773 | 6.22B | Provenance-first corpus from 11 open/official sources. |
 | `v0.3.0-preview` | workflow + candidate data in progress | candidate-only | TBD | Biblioteka Nauki, Europeana, and HPLT/Common Corpus style expansion pending per-source QA, dedup, and legal review. |
 
+![Stable dataset size by version](artifacts/dataset_size_by_version.png)
+
 ### Version details
 
 #### v0.2.3 — current stable

src/plot_version_growth.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+"""Plot stable Polish DynaWord corpus growth across released versions."""
+
+from pathlib import Path
+
+import matplotlib.pyplot as plt
+from matplotlib.ticker import FuncFormatter
+
+
+ROOT = Path(__file__).resolve().parent.parent
+OUTPUT = ROOT / "artifacts" / "dataset_size_by_version.png"
+
+VERSIONS = ["v0.2.0", "v0.2.1", "v0.2.2", "v0.2.3"]
+DOCUMENTS = [2_490_773, 2_491_773, 2_579_963, 2_710_974]
+TOKENS = [6_221_393_871, 6_281_911_234, 6_362_577_363, 6_881_277_362]
+
+
+def millions(value, _position):
+    return f"{value / 1_000_000:.1f}M"
+
+
+def billions(value, _position):
+    return f"{value / 1_000_000_000:.1f}B"
+
+
+def main():
+    plt.style.use("seaborn-v0_8-whitegrid")
+    fig, axes = plt.subplots(1, 2, figsize=(12, 4.8))
+
+    panels = [
+        (axes[0], DOCUMENTS, "Documents", millions, lambda v: f"{v / 1_000_000:.3f}M", "#2563eb"),
+        (axes[1], TOKENS, "Tokens (cl100k proxy)", billions, lambda v: f"{v / 1_000_000_000:.3f}B", "#0f766e"),
+    ]
+
+    for axis, values, ylabel, formatter, labeler, color in panels:
+        axis.plot(VERSIONS, values, marker="o", linewidth=2.5, color=color)
+        axis.fill_between(VERSIONS, values, alpha=0.12, color=color)
+        axis.set_ylabel(ylabel)
+        axis.yaxis.set_major_formatter(FuncFormatter(formatter))
+        axis.spines[["top", "right"]].set_visible(False)
+        axis.grid(axis="x", visible=False)
+        padding = (max(values) - min(values)) * 0.3 or max(values) * 0.02
+        axis.set_ylim(min(values) - padding, max(values) + padding)
+
+        for version, value in zip(VERSIONS, values):
+            axis.annotate(
+                labeler(value),
+                (version, value),
+                xytext=(0, 9),
+                textcoords="offset points",
+                ha="center",
+                fontsize=9,
+                fontweight="bold",
+                color=color,
+            )
+
+    fig.suptitle("Polish DynaWord — stable dataset growth by version", fontsize=15)
+    fig.tight_layout()
+    OUTPUT.parent.mkdir(parents=True, exist_ok=True)
+    fig.savefig(OUTPUT, dpi=180, bbox_inches="tight")
+    plt.close(fig)
+    print(OUTPUT)
+
+
+if __name__ == "__main__":
+    main()